{"title":"„Infidelitãțile“ coeficientului de fidelitate Cronbach alfa","authors":"M. Popa","doi":"10.24837/pru.v9i1.395","DOIUrl":null,"url":null,"abstract":"Cronbach alpha coefficient is still commonly used in research dedicated to the development of psychologicaltests. However, there is a certain lack of understanding of the significance of real and, especially, has its limits.The article presents the fundamental postulates of classical test theory and analyzes, in this context, the mainissues affecting the calculation and interpretation of Cronbach alpha coefficient: unidimensionality, internal consistency,item number, characteristics of the data, the sampling error. Finally, are summarized recommendationsof good practices on the use and reporting Cronbach's alpha.","PeriodicalId":37470,"journal":{"name":"Psihologia Resurselor Umane","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Psihologia Resurselor Umane","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24837/pru.v9i1.395","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Psychology","Score":null,"Total":0}
引用次数: 1
Abstract
Cronbach alpha coefficient is still commonly used in research dedicated to the development of psychologicaltests. However, there is a certain lack of understanding of the significance of real and, especially, has its limits.The article presents the fundamental postulates of classical test theory and analyzes, in this context, the mainissues affecting the calculation and interpretation of Cronbach alpha coefficient: unidimensionality, internal consistency,item number, characteristics of the data, the sampling error. Finally, are summarized recommendationsof good practices on the use and reporting Cronbach's alpha.
期刊介绍：
The Psihologia Resurselor Umane Journal is the official journal of the Association of Industrial and Organizational Psychology (APIO). PRU is devoted to publishing original investigations that contribute to an understanding of situational and individual challenges within an organizational context and that bring forth new knowledge in the field. The journal publishes primarily empirical articles and also welcomes methodological and theoretical articles on a broad range of topics covered by Organizational, Industrial, Work, Personnel and Occupational Health Psychology. Audience includes scholars, educators, managers, HR professionals, organizational consultants, practitioners in organizational and employee development.
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